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On the Duplicity of CP3 Stars

Published online by Cambridge University Press:  12 April 2016

H. Schneider
H. Schneider*
Affiliation:
Universitäts-SternwarteGeismarLandstr. 11 D-3400 Göttingen, F.R.G.

Abstract

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Out of 111 CP3 stars 56.7 percent are binaries and further 15.3 percent are probable binaries. The distribution of the periods shows a maximum around 7 days and the deficit of periods < 3 days is remarkable. Systems with periods < 15 days seem to rotate synchronously, while wider binaries do not. Photometric observations confirm these, and, in addition, point to an occurance of slow pulsation.

Type
Section II - Systematics, Photometry
Information
International Astronomical Union Colloquium , Volume 90: Upper Main Sequence Stars with Anomalous Abundances , 1986 , pp. 205 - 208
Copyright
Copyright © Reidel 1986

References

[1] Schneider, H. Astron.Astrophys. SuppL. 44,137 (1981)Google Scholar
[2] Batten, A.H., Fletcher, J.M., Mann, P.J. Publ. DAO 15, 121 (1978)Google Scholar